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AWS BMg-1 vs. CC480K Bronze

AWS BMg-1 belongs to the magnesium alloys classification, while CC480K bronze belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is AWS BMg-1 and the bottom bar is CC480K bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 47
110
Elongation at Break, % 3.8
13
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 18
41
Tensile Strength: Ultimate (UTS), MPa 180
300
Tensile Strength: Yield (Proof), MPa 110
180

Thermal Properties

Latent Heat of Fusion, J/g 350
190
Maximum Temperature: Mechanical, °C 130
170
Melting Completion (Liquidus), °C 600
1010
Melting Onset (Solidus), °C 440
900
Specific Heat Capacity, J/kg-K 980
370
Thermal Conductivity, W/m-K 76
63
Thermal Expansion, µm/m-K 26
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
11
Electrical Conductivity: Equal Weight (Specific), % IACS 55
11

Otherwise Unclassified Properties

Base Metal Price, % relative 12
35
Density, g/cm3 1.8
8.8
Embodied Carbon, kg CO2/kg material 22
3.7
Embodied Energy, MJ/kg 160
59
Embodied Water, L/kg 980
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.9
35
Resilience: Unit (Modulus of Resilience), kJ/m3 120
140
Stiffness to Weight: Axial, points 14
6.9
Stiffness to Weight: Bending, points 66
18
Strength to Weight: Axial, points 27
9.6
Strength to Weight: Bending, points 39
11
Thermal Diffusivity, mm2/s 43
20
Thermal Shock Resistance, points 10
11

Alloy Composition


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Aluminum (Al), % 8.3 to 9.7
0 to 0.010
Antimony (Sb), % 0
0 to 0.2
Beryllium (Be), % 0.00020 to 0.00080
0
Copper (Cu), % 0 to 0.050
86 to 90
Iron (Fe), % 0 to 0.0050
0 to 0.2
Lead (Pb), % 0
0 to 1.0
Magnesium (Mg), % 86.1 to 89.8
0
Manganese (Mn), % 0.15 to 1.5
0 to 0.1
Nickel (Ni), % 0 to 0.0050
0 to 2.0
Phosphorus (P), % 0
0 to 0.2
Silicon (Si), % 0 to 0.050
0 to 0.020
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0
9.0 to 11
Zinc (Zn), % 1.7 to 2.3
0 to 0.5
Residuals, % 0 to 0.3
0